The soul in the attitude of prayer is like the flower turned upwards towards the sky and opening for the reception of the life-giving rain. What is prayer but an adoring appearing before God with a confession of our need and helplessness and a petition for His strength and blessing? What is prayer but a recognition of our dependence and a proclamation that all that we dependent creatures need is found abundantly and to spare in God, who gives to all men liberally and upbraids not? What is prayer but the very adjustment of the heart for the influx of grace? -B.B. Warfield in Prayer as a Means of Grace